Is your Outlook closes automatically after opening? It could be due to a corrupt PST file or faulty extensions. Try opening Outlook in Safe Mode by pressing Windows + R, type outlook /safe, and hit Enter. If Outlook opens without crashing, the issue may be with add-ins.. Then disable all add-ins that are creating hassle. If that doesn’t help, check for PST file corruption. The ScanPST tool may not always work, so consider using Yota PST Converter to repair the PST file and recover your data. Also, update Outlook and consider setting up a new profile. These steps usually resolve the issue completely.